Water → N-(3-Fluoro-4-pyridinyl)-N-(3-methyl-1H-indol-1-yl)glycine ethyl ester

HRID 1197623Notes

Reaction equation

[H-].[Na+].[F:3][C:4]1[CH:5]=[N:6][CH:7]=[CH:8][C:9]=1[NH:10][N:11]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([CH3:20])=[CH:12]1.Cl[CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24].O>CN(C)C=O>[CH2:26]([O:25][C:23](=[O:24])[CH2:22][N:10]([C:9]1[CH:8]=[CH:7][N:6]=[CH:5][C:4]=1[F:3])[N:11]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([CH3:20])=[CH:12]1)[CH3:27]

Participants

Conditions

Temperature: -20 °C

Procedure

To a suspension of NaH (60% in oil, 1.48 g) in 10 ml of dimethylformamide (DMF) at ice bath temperature was added dropwise a solution of N-(3-fluoro-4-pyridinyl)-3-methyl-1H-indol-1-amine (8.5 g) in 40 ml of DMF, when addition was complete, the mixture was stirred for 15 minutes at ice bath temperature, and then cooled to -20° C. Ethyl chloroacetate (3.95 ml) was added dropwise in 10 ml of DMF. The mixture was stirred at -20° C. for one hour. The mixture was then poured into water and extracted with ethyl acetate. The organic layer was washed with water and dried (sat. NaCl, anhy. MgSO4). After filtering, the solvent was evaporated to yield an oil (12.2 g) which was eluted with 10% ethyl acetate/DCM on a silica gel column via HPLC. The desired fractions were evaporated to yield 6.9 g of a solid, m.p. 105°-108° C.

Workup

additionwas added dropwise
stirringThe mixture was stirred at -20° C. for one hour
extractionextracted with ethyl acetate
washThe organic layer was washed with water
dry with materialdried (sat. NaCl
filtrationAfter filtering
customthe solvent was evaporated

Sources & evidence

ORD record: ord-bd7e5cfd453e498d9167140d5811aadc
Source dataset: uspto-grants-1994_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05276156

Reaction notes

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